Field Symbol System Exception

I have assigned some value to the field symbol.

I am getting the following error in Short Dump

error

ABAP runtime errors GETWA_NOT_ASSIGNED

Occurred on 11/10/2005 at 10:20:46

>> Short dump has not been completely stored. It is too big.

Field symbol has not yet been assigned.

IS there any system Exception to catch this exception. I tried following code but it is giving me error.

CATCH SYSTEM-EXCEPTIONS GETWA_NOT_ASSIGNED = 5

<MY CODE>

ENDCATCH.

If sy-subrc eq 5.

endif.

Please let me know if there is any system exception to catch this error.

Aman